The ring of Brodgar is in the area where this stone came from. There is also evidence of stone circles underwater near to it from before sea levels rose at the

The ring of Brodgar is in the area where this stone came from. There is also evidence of stone circles underwater near to it from before sea levels rose at the end of the last ice age. If your religious sites were getting inundated I imagine you'd try to move the most important part of them as far away from the area as possible and to higher suitable ground. So Stonehenge may exist as a consequence of ancient climate change :). The river Avon at Amesbury had population centres in Neolithic times. The Old Sarum hill fort near Salisbury for example.